Thinkpad T61 15" Announced

In Lenovo website says 15.4" but when you order it it shows 15 " on the page before you final place your order , when you check on shareholder or employee discount website, you can't order them yet ( its 3:41 am now) it comes with Intel GMA X3100 GM965 w/ WWAN

GMA X3100: Mobile Graphics Champ or Chump?

Intel's Graphics Media Accelerator X3100 may have a higher number, but it's simply a mobile version of the GMA X3000 technology in the G965 Express desktop chipset. The X3100 supports some very high-end features like hardware transfer and lighting, vertex and pixel Shader Model 3.0, and 32-bit floating-point operations.

More impressive still, the GPU features eight unified programmable pipelines, each fully DirectX 10-compliant and able to process either video, vertex, or texture operations -- the architecture behind Nvidia's awesome GeForce 8 series, just not as powerful. The clock speed of the mobile part has been scaled back to 500MHz, compared to the desktop chipset's 667MHz, and it can support up to 384MB of dynamically allocated memory. Other notebook-centric features such as display power savings are also part of the X3100.

This integrated GPU certainly looks good on paper; indeed, an eight-pipeline SM3.0 graphics core is unheard-of among integrated mobile chipsets. Unfortunately, although the GMA X3100 may have the necessary specifications, in the real world, it's crippled by unsupported features and incomplete drivers it.

For example, Intel has yet to produce DirectX 10-compliant drivers for the X3000/X3100, and there are rumors that these may never emerge. The eight unified pipelines offer great potential, but currently these can only emulate hardware T&L and Vertex Shader 3.0 in software. Intel has pledged to supply drivers that fully support all the hardware features of the GMA X3000/X3100 later in 2007, but for now at least, it's a letdown.